Oatey 43904
Oatey backwater valves are designed as a sewage check valve to prevent pumped water from flowing back into the basin.
- Elastomeric seal in quick action flapper ensures a water tight seal
- Threaded access cap incorporates a neoprene seal for positive sealing and can be tightened or removed by hand
- Valve hub fits DWV pipe and can be adapted for sewer and drain pipe
Specification Sheet